User Equipment, Base Station and Method for Exchanging Sidelink Information

1. A method for a user equipment (UE), the method comprising: determining, by the UE, an available sidelink process information; and transmitting, by the UE, the available sidelink process information to another UE or to a base station, wherein the available sidelink process information indicates, to the another UE or to the base station, an availability of the UE to receive data, wherein the available sidelink process information comprises an available sidelink process number which is a difference between a maximum sidelink process number and a used sidelink process number.

2. The method of claim 1, further comprising: receiving, by the UE, an available sidelink process request from the another UE; wherein transmitting the available sidelink process information further comprises: transmitting, by the UE, the available sidelink process information to the another UE in response to the available sidelink process request.

3. The method of claim 1, further comprising: receiving, by the UE, an available sidelink process request from the base station; wherein transmitting the available sidelink process information further comprises: transmitting, by the user equipment, the available sidelink process information to the base station in response to the available sidelink process request.

4. The method of claim 1, further comprising: receiving, by the UE, a required sidelink process information from the another UE.

5. The method of claim 4, wherein the required sidelink process information comprises a required sidelink process number, and the method further comprises: receiving, by the UE, an offset of the required sidelink process number from the another UE, wherein the offset is a variable of the required sidelink process number.

6. The method of claim 4, wherein the required sidelink process information comprises a required sidelink process number, the available sidelink process information comprises an available sidelink process number, and the method further comprises: determining, by the UE, that the required sidelink process number is greater than the available sidelink process number of the UE; wherein the available sidelink process information further comprises a rejection signal.

7. The method of claim 4, wherein the required sidelink process information comprises a required sidelink process number, the available sidelink process information comprises an available sidelink process number, and the method further comprises: determining, by the UE, that the required sidelink process number is greater than the available sidelink process number; and establishing, by the UE, a sidelink communication connection with the another UE based on the available sidelink process number.

8. The method of claim 4, wherein the required sidelink process information comprises a required sidelink process number, the available sidelink process information comprises an available sidelink process number and an unavailable sidelink process number, the unavailable sidelink process number is a difference between the available sidelink process number and the required sidelink process number, and the method further comprises: determining, by the UE, that the required sidelink process number is greater than the available sidelink process number; wherein transmitting the available sidelink process information to the another UE further comprises: transmitting, by the UE, the unavailable sidelink process number to the another UE.

9. The method of claim 1, wherein the available sidelink process information comprises an available sidelink process number, and the method further comprises: determining, by the UE, an offset of the available sidelink process number, wherein the offset is a variable of the available sidelink process number; and transmitting, by the UE, the offset to the another UE.

10. The method of claim 1, wherein the maximum sidelink process number corresponds to a plurality of soft channel bits, the used sidelink process number corresponds to a plurality of used soft channel bits of the plurality of soft channel bits, the available sidelink process number corresponds to a plurality of available soft channel bits of the plurality of soft channel bits, and the plurality of available soft channel bits is a difference between the plurality of used soft channel bits and the plurality of soft channel bits.

11. A method for a user equipment (UE), the method comprising: receiving, by the UE, an available sidelink process information from another UE, wherein the available sidelink process information indicates an availability of the another UE to receive data; wherein the available sidelink process information is determined by the UE; and transmitting, by the UE, an available sidelink process request to the another UE, wherein the available sidelink process information comprises an available sidelink process number which is a difference between a maximum sidelink process number and a used sidelink process number.

12. The method of claim 11, further comprising: determining, by the UE, a required sidelink process information; transmitting, by the UE, the required sidelink process information to the another UE.

13. The method of claim 12, wherein the required sidelink process information comprises a required sidelink process number, the available sidelink process information comprises an available sidelink process number, the required sidelink process number is greater than an available sidelink process number of the another UE, and the available sidelink process information further comprises a rejection signal.

14. A user equipment (UE), comprising: at least one memory; and at least one processor coupled with the at least one memory and configured to cause the UE to: determine an available sidelink process information; and transmit the available sidelink process information to another user equipment or a base station, wherein the available sidelink process information indicates, to the another UE or to the base station, an availability of the UE to receive data, wherein the available sidelink process information comprises an available sidelink process number which is a difference between a maximum sidelink process number and a used sidelink process number.

15. The UE of claim 14, wherein the at least one processor is further configured to cause the at least one processor to receive an available sidelink process request from the another UE, and transmit the available sidelink process information to the another UE in response to the available sidelink process request.

16. The UE of claim 14, wherein the at least one process is further configured to cause the at least one processor to receive an available sidelink process request from the base station, and transmit the available sidelink process information to the base station in response to the available sidelink process request.

17. The UE of claim 14, wherein the at least one process is further configured to cause the at least one processor to receive a required sidelink process information from the another UE.

18. The UE of claim 17, wherein: the required sidelink process information comprises a required sidelink process number; the available sidelink process information comprises an available sidelink process number; the at least one processor is further configured to cause the UE to determine that the required sidelink process number is greater than the available sidelink process number of the user equipment; and the available sidelink process information further comprises a rejection signal.